Question

Read the statements (A-E) and answer the question following them:

(1) BamhI site is located in tet^R in pBR322.

(2) Ti plasmid is obtained from E. coli

(3) Replication of bacteriophages in bacteria is independent of chromosomal DNA.

(4) First artificial recombinant DNA was constructed by Cohen and Boyer in 1972.

(5) In animals, retroviruses can transform the normal cells into Cancerous cells.

How many of the above statements are correct?

• A. All
• B. One
• C. Three
• D. Four

Answer 1

Answer: (D)

Four